Supported OS: Windows® XP Service Pack 2 or Windows Vista® (service pack is optional) Processor: Dual-core processor (Intel® Core™2 Duo 2.4 GHz or AMD Athlon™ X2 5200+ 2.6 GHz) Memory: 1.5 GB RAM Graphics: DirectX®9.0c/Shader3.0 compatible, VRAM 512 MB (NVIDIA® GeForce&reg 7800 series or ATI Radeon™ X1900) Sound: DirectX®9.0c compatible sound cards DirectX®: DirectX®9.0c Hard Drive: 8.0 GB free space Peripherals: Keyboard and Xbox 360 controller supported